Just wondering if there is a good rule of thumb about the number of grams of KMeta to use in a 5 gallon batch of fresh apple cider prior to pitching yeast? I don’t have Camden tablets, only loose KMeta... and I have a 5 gallon batch coming in Friday and want to dose it for a day before I pitch the yeast. I have heard 3-4 campden tablets, but I can’t seem to find a weight (or volume for that matter). Thanks in advance cider makers!

That is consistent with what I saw on a Michael Fairbrother's recent article, but he didn't say it was for a 5 gallon batch (he had 1.8 grams or 3 Campden tablets). I may split my batch and see if I can discern any difference between "dosed" and raw cider in the end.